CAJ | 학술논문

采用钛基钎料Ti37.5Zr15Cu10Ni作为中间层对TA15钛合金进行了真空扩散钎焊，对扩散钎焊接头界面微观组织进行了分析，同时测试了接头室温和液氮低温力学性能。试验结果表明：钎料与TA15基体发生了快速的互扩散，焊缝微观组织全部呈针状，接头室温和液氮低温状态下均脆断于焊缝，室温拉伸强度达到基体材料拉伸强度的93.8%。
채용태기천료Ti37.5Zr15Cu10Ni작위중간층대TA15태합금진행료진공확산천한，대확산천한접두계면미관조직진행료분석，동시측시료접두실온화액담저온역학성능。시험결과표명：천료여TA15기체발생료쾌속적호확산，한봉미관조직전부정침상，접두실온화액담저온상태하균취단우한봉，실온랍신강도체도기체재료랍신강도적93.8%。
TA15 alloy is vacuum brazed with Ti37.5Zr15Cu10Ni ifller metal. The microstructure of in-terface diffusion welding brazing is analyzed. Meanwhile, the mechanical properties of the joint are tested at room temperature and low temperature of liquid nitrogen. The results show that the fast diffusion between the solder and the TA15 alloy occurs, and the microstructure of weld is needle like. The joints are brittle fracture in the joint at room temperature and low temperature of liquid nitrogen. The tensile strength of the joints at room temperature reaches 93.8%of the base material.